#include "processor.h" #include "stmlib/stmlib.h" #include "stmlib/dsp/dsp.h" #include "stmlib/utils/dsp.h" #include using namespace stereo_mix; using namespace stmlib; void Processor::Process(int16_t cvs[], uint16_t* outs) { uint32_t value_l; uint32_t value_r; // dirty low pass this->cv_input_pan += ((cvs[0] - this->cv_input_pan) >> 4); this->cv_input_vol += ((cvs[1] - this->cv_input_vol) >> 5); uint16_t pan_pot = (pan_offset + 32767L); uint16_t vol_pot = (vol_offset); int32_t vol_cv = (cv_input_vol * static_cast(vol_att)) >> 15; vol_cv = Clip16(vol_cv); // calculate value for ui int32_t lin = vol_offset + (vol_cv << 3) * 3; lin = ClipU16(lin); lin *= !mute; this->linear_vol = lin; uint16_t vol_pot_exp = Interpolate124(lut_linear_to_exp, vol_pot); uint16_t vol_pot_log = 65535 - InverseInterpolate124(lut_linear_to_exp, vol_pot); int32_t vol = Mix(static_cast(vol_pot_exp >> 1), vol_pot_log >> 1, log_exp_mix_pot) << 1; uint16_t vol_cv_absu16 = abs(vol_cv) << 1; uint16_t vol_cv_exp = Interpolate124(lut_linear_to_exp, vol_cv_absu16); uint16_t vol_cv_log = 65535 - InverseInterpolate124(lut_linear_to_exp, vol_cv_absu16); uint32_t vol_cv_pre = (Mix(static_cast(vol_cv_exp >> 1), vol_cv_log >> 1, log_exp_mix_cv) << 1) * 2; vol += vol_cv > 0 ? vol_cv_pre : -vol_cv_pre; vol *= !mute; vol = ClipU16(vol); this->previous_vol = vol; int32_t pan_cv = (cv_input_pan * static_cast(pan_att)) >> 15; // full attenuate gives 2x amplification :) pan_cv = Clip16(pan_cv); int32_t pan = pan_pot + ((pan_cv) * 2); pan = ClipU16(pan); value_l = (lut_left_sin_pan[pan >> 4] * vol) >> 16; value_r = (lut_right_cos_pan[pan >> 4] * vol) >> 16; outs[0] = value_r; outs[1] = value_l; }